TSB: BUICK 3500HD, BLAZER, BOLT EV, BRIGHTDROP EV600, CAMARO, CANYON, COLORADO, CT4, CT5, ENCLAVE, ENCORE GX, ENVISION, ENVISTA, EQUINOX, EQUINOX EV, ESCALADE, HUMMER EV, LYRIQ, MALIBU, SAVANA, SIERRA 1500, SIERRA 2500, SIERRA 3500, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SILVERADO EV, SUBURBAN, TAHOE, TERRAIN, TRAILBLAZER, TRAVERSE, TRAX, XT4, XT5, XT6, YUKON (2024)
Bulletin 05-06-04-022U — March 28, 2023
Bulletin Details
| Bulletin ID | 05-06-04-022U |
| Manufacturer | BUICK |
| Models | 3500HD, BLAZER, BOLT EV, BRIGHTDROP EV600, CAMARO, CANYON, COLORADO, CT4, CT5, ENCLAVE, ENCORE GX, ENVISION, ENVISTA, EQUINOX, EQUINOX EV, ESCALADE, HUMMER EV, LYRIQ, MALIBU, SAVANA, SIERRA 1500, SIERRA 2500, SIERRA 3500, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SILVERADO EV, SUBURBAN, TAHOE, TERRAIN, TRAILBLAZER, TRAVERSE, TRAX, XT4, XT5, XT6, YUKON |
| Model Years | 2024 |
| Date Issued | March 28, 2023 |
| Date Added to NHTSA | April 13, 2023 |
| Component | FUEL SYSTEM, GASOLINE |
| Vehicles Affected | 123 combinations |
What is a TSB?
A Technical Service Bulletin is a document issued by the vehicle manufacturer to inform dealership technicians about a known issue and the recommended repair procedure. TSBs are not mandatory recalls — they serve as repair guidance for common problems.
If your vehicle has this issue, bring this bulletin ID to your dealer. If under warranty, the repair should be covered at no cost.
Summary
This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles and the TOP TIER FUELS website URL.
Affected Vehicles
| Make | Model | Year | Component |
|---|---|---|---|
| CHEVROLET | 3500HD | 2024 | 070000 FUEL SYSTEM, GASOLINE |
| CHEVROLET | 3500HD | 2024 | 080000 FUEL SYSTEM, DIESEL |
| CHEVROLET | 3500HD | 2024 | 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY |
| GMC | 3500HD | 2024 | 070000 FUEL SYSTEM, GASOLINE |
| GMC | 3500HD | 2024 | 080000 FUEL SYSTEM, DIESEL |
| GMC | 3500HD | 2024 | 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY |
| CHEVROLET | BLAZER | 2024 | 070000 FUEL SYSTEM, GASOLINE |
| CHEVROLET | BLAZER | 2024 | 080000 FUEL SYSTEM, DIESEL |
| CHEVROLET | BLAZER | 2024 | 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY |
| CHEVROLET | BOLT EV | 2024 | 070000 FUEL SYSTEM, GASOLINE |
| CHEVROLET | BOLT EV | 2024 | 080000 FUEL SYSTEM, DIESEL |
| CHEVROLET | BOLT EV | 2024 | 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY |
| GMC | BRIGHTDROP EV600 | 2024 | 070000 FUEL SYSTEM, GASOLINE |
| GMC | BRIGHTDROP EV600 | 2024 | 080000 FUEL SYSTEM, DIESEL |
| GMC | BRIGHTDROP EV600 | 2024 | 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY |
| CHEVROLET | CAMARO | 2024 | 070000 FUEL SYSTEM, GASOLINE |
| CHEVROLET | CAMARO | 2024 | 080000 FUEL SYSTEM, DIESEL |
| CHEVROLET | CAMARO | 2024 | 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY |
| GMC | CANYON | 2024 | 070000 FUEL SYSTEM, GASOLINE |
| GMC | CANYON | 2024 | 080000 FUEL SYSTEM, DIESEL |
| GMC | CANYON | 2024 | 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY |
| CHEVROLET | COLORADO | 2024 | 070000 FUEL SYSTEM, GASOLINE |
| CHEVROLET | COLORADO | 2024 | 080000 FUEL SYSTEM, DIESEL |
| CHEVROLET | COLORADO | 2024 | 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY |
| CADILLAC | CT4 | 2024 | 070000 FUEL SYSTEM, GASOLINE |
| CADILLAC | CT4 | 2024 | 080000 FUEL SYSTEM, DIESEL |
| CADILLAC | CT4 | 2024 | 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY |
| CADILLAC | CT5 | 2024 | 070000 FUEL SYSTEM, GASOLINE |
| CADILLAC | CT5 | 2024 | 080000 FUEL SYSTEM, DIESEL |
| CADILLAC | CT5 | 2024 | 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY |
| BUICK | ENCLAVE | 2024 | 070000 FUEL SYSTEM, GASOLINE |
| BUICK | ENCLAVE | 2024 | 080000 FUEL SYSTEM, DIESEL |
| BUICK | ENCLAVE | 2024 | 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY |
| BUICK | ENCORE GX | 2024 | 070000 FUEL SYSTEM, GASOLINE |
| BUICK | ENCORE GX | 2024 | 080000 FUEL SYSTEM, DIESEL |
| BUICK | ENCORE GX | 2024 | 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY |
| BUICK | ENVISION | 2024 | 070000 FUEL SYSTEM, GASOLINE |
| BUICK | ENVISION | 2024 | 080000 FUEL SYSTEM, DIESEL |
| BUICK | ENVISION | 2024 | 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY |
| BUICK | ENVISTA | 2024 | 070000 FUEL SYSTEM, GASOLINE |
| BUICK | ENVISTA | 2024 | 080000 FUEL SYSTEM, DIESEL |
| BUICK | ENVISTA | 2024 | 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY |
| CHEVROLET | EQUINOX | 2024 | 070000 FUEL SYSTEM, GASOLINE |
| CHEVROLET | EQUINOX | 2024 | 080000 FUEL SYSTEM, DIESEL |
| CHEVROLET | EQUINOX | 2024 | 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY |
| CHEVROLET | EQUINOX EV | 2024 | 070000 FUEL SYSTEM, GASOLINE |
| CHEVROLET | EQUINOX EV | 2024 | 080000 FUEL SYSTEM, DIESEL |
| CHEVROLET | EQUINOX EV | 2024 | 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY |
| CADILLAC | ESCALADE | 2024 | 070000 FUEL SYSTEM, GASOLINE |
| CADILLAC | ESCALADE | 2024 | 080000 FUEL SYSTEM, DIESEL |
| CADILLAC | ESCALADE | 2024 | 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY |
| GMC | HUMMER EV | 2024 | 070000 FUEL SYSTEM, GASOLINE |
| GMC | HUMMER EV | 2024 | 080000 FUEL SYSTEM, DIESEL |
| GMC | HUMMER EV | 2024 | 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY |
| CADILLAC | LYRIQ | 2024 | 070000 FUEL SYSTEM, GASOLINE |
| CADILLAC | LYRIQ | 2024 | 080000 FUEL SYSTEM, DIESEL |
| CADILLAC | LYRIQ | 2024 | 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY |
| CHEVROLET | MALIBU | 2024 | 070000 FUEL SYSTEM, GASOLINE |
| CHEVROLET | MALIBU | 2024 | 080000 FUEL SYSTEM, DIESEL |
| CHEVROLET | MALIBU | 2024 | 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY |
| GMC | SAVANA | 2024 | 070000 FUEL SYSTEM, GASOLINE |
| GMC | SAVANA | 2024 | 080000 FUEL SYSTEM, DIESEL |
| GMC | SAVANA | 2024 | 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY |
| GMC | SIERRA 1500 | 2024 | 070000 FUEL SYSTEM, GASOLINE |
| GMC | SIERRA 1500 | 2024 | 080000 FUEL SYSTEM, DIESEL |
| GMC | SIERRA 1500 | 2024 | 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY |
| GMC | SIERRA 2500 | 2024 | 070000 FUEL SYSTEM, GASOLINE |
| GMC | SIERRA 2500 | 2024 | 080000 FUEL SYSTEM, DIESEL |
| GMC | SIERRA 2500 | 2024 | 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY |
| GMC | SIERRA 3500 | 2024 | 070000 FUEL SYSTEM, GASOLINE |
| GMC | SIERRA 3500 | 2024 | 080000 FUEL SYSTEM, DIESEL |
| GMC | SIERRA 3500 | 2024 | 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY |
| CHEVROLET | SILVERADO 1500 | 2024 | 070000 FUEL SYSTEM, GASOLINE |
| CHEVROLET | SILVERADO 1500 | 2024 | 080000 FUEL SYSTEM, DIESEL |
| CHEVROLET | SILVERADO 1500 | 2024 | 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY |
| CHEVROLET | SILVERADO 2500 | 2024 | 070000 FUEL SYSTEM, GASOLINE |
| CHEVROLET | SILVERADO 2500 | 2024 | 080000 FUEL SYSTEM, DIESEL |
| CHEVROLET | SILVERADO 2500 | 2024 | 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY |
| CHEVROLET | SILVERADO 3500 | 2024 | 070000 FUEL SYSTEM, GASOLINE |
| CHEVROLET | SILVERADO 3500 | 2024 | 080000 FUEL SYSTEM, DIESEL |
| CHEVROLET | SILVERADO 3500 | 2024 | 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY |
| CHEVROLET | SILVERADO EV | 2024 | 070000 FUEL SYSTEM, GASOLINE |
| CHEVROLET | SILVERADO EV | 2024 | 080000 FUEL SYSTEM, DIESEL |
| CHEVROLET | SILVERADO EV | 2024 | 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY |
| CHEVROLET | SUBURBAN | 2024 | 070000 FUEL SYSTEM, GASOLINE |
| CHEVROLET | SUBURBAN | 2024 | 080000 FUEL SYSTEM, DIESEL |
| CHEVROLET | SUBURBAN | 2024 | 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY |
| CHEVROLET | TAHOE | 2024 | 070000 FUEL SYSTEM, GASOLINE |
| CHEVROLET | TAHOE | 2024 | 080000 FUEL SYSTEM, DIESEL |
| CHEVROLET | TAHOE | 2024 | 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY |
| GMC | TERRAIN | 2024 | 070000 FUEL SYSTEM, GASOLINE |
| GMC | TERRAIN | 2024 | 080000 FUEL SYSTEM, DIESEL |
| GMC | TERRAIN | 2024 | 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY |
| CHEVROLET | TRAILBLAZER | 2024 | 070000 FUEL SYSTEM, GASOLINE |
| CHEVROLET | TRAILBLAZER | 2024 | 080000 FUEL SYSTEM, DIESEL |
| CHEVROLET | TRAILBLAZER | 2024 | 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY |
| CHEVROLET | TRAVERSE | 2024 | 070000 FUEL SYSTEM, GASOLINE |
| CHEVROLET | TRAVERSE | 2024 | 080000 FUEL SYSTEM, DIESEL |
| CHEVROLET | TRAVERSE | 2024 | 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY |
| CHEVROLET | TRAX | 2024 | 070000 FUEL SYSTEM, GASOLINE |
| CHEVROLET | TRAX | 2024 | 080000 FUEL SYSTEM, DIESEL |
| CHEVROLET | TRAX | 2024 | 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY |
| CADILLAC | XT4 | 2024 | 070000 FUEL SYSTEM, GASOLINE |
| CADILLAC | XT4 | 2024 | 080000 FUEL SYSTEM, DIESEL |
| CADILLAC | XT4 | 2024 | 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY |
| CADILLAC | XT5 | 2024 | 070000 FUEL SYSTEM, GASOLINE |
| CADILLAC | XT5 | 2024 | 080000 FUEL SYSTEM, DIESEL |
| CADILLAC | XT5 | 2024 | 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY |
| CADILLAC | XT6 | 2024 | 070000 FUEL SYSTEM, GASOLINE |
| CADILLAC | XT6 | 2024 | 080000 FUEL SYSTEM, DIESEL |
| CADILLAC | XT6 | 2024 | 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY |
| GMC | YUKON | 2024 | 070000 FUEL SYSTEM, GASOLINE |
| GMC | YUKON | 2024 | 080000 FUEL SYSTEM, DIESEL |
| GMC | YUKON | 2024 | 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY |
Related BUICK Recalls
What Should You Do?
If your vehicle is affected by this TSB, contact your authorized BUICK dealer. Bring this bulletin ID (05-06-04-022U) when you visit. If under warranty, the repair should be free. If your warranty has expired, ask about goodwill coverage — manufacturers sometimes cover TSB-related repairs beyond the warranty period.
Frequently Asked Questions
A recall is a mandatory safety fix — the manufacturer must repair every affected vehicle for free. A TSB is an advisory document that describes a known issue and the recommended fix, but repairs are not required. However, some TSBs eventually lead to recalls if the issue poses a safety risk. TSBs are generally issued for quality or performance problems, while recalls address safety defects.
If your vehicle is still under the manufacturer's warranty, TSB-related repairs are typically covered at no cost. If your warranty has expired, you can ask the dealer about goodwill or customer assistance programs. Many manufacturers will cover or partially cover repairs for well-known issues, especially if the TSB was issued recently or affects a large number of vehicles.
Check the make, model, and model year listed above against your vehicle. If they match, this bulletin likely applies. However, TSBs may only affect vehicles with specific production dates, VIN ranges, or configurations. Your dealer can confirm by entering your VIN into their service system, which will show all applicable TSBs and recalls.
This data comes from the National Highway Traffic Safety Administration (NHTSA). Manufacturers are required to submit copies of all communications (including TSBs) sent to their dealers to NHTSA. The agency makes this data publicly available as part of its vehicle safety monitoring program.